Pages

LSMW-Interview Questions With Answers-SAP ABAP-2.

7. What Is Data Migration & What Is The Significance Of Data Migration. State The Most Important Data Migration Tools Available In SAP?

Data Migration stands for data transfer between two like or alike systems. During SAP R/3 implementation the data needs to be moved from legacy system to the SAP system. Sometimes periodic data transfer between R/3 and other system (interfacing) is also required. Both of the above form a part of data migration.

Significance of data migration are:

Data migration comes in the end of R/3 implementation.

To start with Data Migration first configuration should be fully completed

Data migration is about 20% to 40% of the total implementation expenses.

The tools for data migration are:-

BDC (Batch Data Communication)

LSMW (Legacy System Migration Workbench)

8. What Are The Main Functions Of LSMW?

The 3 main functions of the LSMW are:

Reading the legacy data from one or several files (e.g. spreadsheet tables, sequential files).

Converting data from its original (legacy system) format to the target (SAP) format

Importing the data using standard interfaces (Batch Input, Direct Input, BAPI, IDoc) into the database of the R/3 application.

Transaction Code to start the LSM Workbench is LSMW.

9. Can LSMW Be Used For Handling Multiple Recordings?

Generally Multiple Recordings are done for transactions which has multiple access sequences like VK11, TK11, etc. Batch Input Method is capable of handling multiple recording and Batch Input recording is one of the import methods available in LSMW. So yes, LSMW can be used for handling multiple recordings.